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Transmission and drivetrainPart report

2005 Buick Terraza Transmission and drivetrain Problems

Complaints
7about this part
Share
6%of 120 total for the year
Median mileage
60,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the transmission and drivetrain of the 2005 Buick Terraza, 6% of the 120 complaints for this model year. Where a mileage was given, the median is 60,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“While trying to shift, the shifting lever disconnected to the transmission. This made it impossible to shift gears. The shifting assembly appeared to come apart. I am not able to use the vehicle due to this .”

NHTSA complaint #10622244, filed 2014-08, 60,000 miles

“Dt: the contact stated had a technician from GM look at his car because he was having many problems with his horn. E noticed problems with the horn on or around 5-20-05. It was very hard to push. The horn. You almost have to take a hammer to get it to blow. The dash lights are also very dim. He has found several complaints on the NHTSA website about the horn not blowing. Transmission kicks into passing gear too much going up slight grades on the interstate at 65-70 MPH. …”

NHTSA complaint #10132022, filed 2005-08, 100 miles

“Vibration at 50+ MPH. Pulsating, vibrating when braking. Uneven wear on tires (feathering) noticed at 3,000 miles. Horn takes a lot of pressure to make it work. 2 metro Buick dealers say all above is normal and can not find anything wrong. One dealer printed 2 service bulletins to show me GM says it is normal. Headlights and interior lights dim and brighten on their own. Have had numerous oncoming cars blink their high beams at me thinking my high beams are on. I was denied in my request for a Buick official to get involved. …”

NHTSA complaint #10160330, filed 2006-06

“The contact owns a 2005 Buick Terraza. The contact stated while driving 20 MPH, while making a left turn, the vehicle loss motive power and jerked before stalling. The electronic stability warning light illuminated. The vehicle was restarted and operated as designed. The contact stated that the failure was intermittent. The contact took the vehicle to an independent mechanic to be diagnosed. The contact was informed that the steering angle sensor needed to be replaced. The vehicle was repaired however, the failure recurred. …”

NHTSA complaint #11443130, filed 2021-12, 151,000 miles

“The contact owns a 2005 Buick Terraza. The contact stated that the vehicle experienced stalling while driving in inclement weather. The ESC warning indicator illuminated. The vehicle was taken to the dealer; however, the vehicle could not be diagnosed. The vehicle was not repaired and the failure recurred. The vehicle was returned to the dealer where the technician diagnosed that there was a failure with the electrical system; however, they could not diagnose the failure. The vehicle was not repaired and the failure recurred. …”

NHTSA complaint #10818704, filed 2016-01, 74,953 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
200636%
200576%

Other parts of the 2005 Buick Terraza

Electrical system
37 complaintsElectronic stability control
29 complaintsBrakes
19 complaintsLatches, locks and linkages
16 complaintsSteering
14 complaintsBody and structure
12 complaintsSuspension
12 complaintsOther or unknown
11 complaintsExterior lighting
5 complaintsAir bags
4 complaintsEngine
4 complaintsEngine cooling
4 complaints

← All problems reported for the 2005 Buick Terraza

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology